A lot of times these 89% are not legally allowed to sell their products, as USDA and FDA require them to outsiurce processing. In the few cases where farmers just do it anyways, the long arm of the law strikes with extreme prejudice, e.g. see Amish farmers selling unpasteurized yoghurt and cheese –products which derive their value by being spoiled through probiotic micro organisms.

Loosen up regulations, but allow everyone to be accountable again, and common law will sort it out.